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<DIV>Hi Sandy</DIV>
<DIV> </DIV>
<DIV>The reference frequency for the clock chip IC201 is provided by your
mains supply so there is no way to adjust that. Over long periods, say 24 hours,
the mains supply is supposed to be very accurate and you can probably find the
spec for the US mains on the Internet. Over short periods of time the mains
frequency moves around a bit.</DIV>
<DIV> </DIV>
<DIV>If you find that the time is changing randomly faster than expected
then it may be noise or pulse interference on the mains causing false triggering
but there is a simple RC filter inside the SB634 to remove any pulses. Check
that the filter capacitor C202 (0.02uF) is still good.</DIV>
<DIV> </DIV>
<DIV>I have a collection of service bulletins for the SB634 if you need
them.</DIV>
<DIV> </DIV></DIV>
<DIV><FONT lang=0 size=2 face=Arial FAMILY="SANSSERIF"
PTSIZE="10">73<BR></FONT><FONT lang=0 color=#0000ff size=4 face=Arial
FAMILY="SANSSERIF" PTSIZE="14"><I><BR>Bob</FONT><FONT lang=0 color=#000000
size=2 face=Arial FAMILY="SANSSERIF" PTSIZE="10"></I><BR>Bob F Burns G3OOU<BR>C
Eng, FIET, MSE<BR>G-QRP 6907<BR>Crystal Palace Radio & Electronics Club:
www.g3oou.co.uk<BR>Technical web site: <A
href="http://www.qsl.net/g3oou">www.qsl.net/g3oou</A><BR>@BobFBurns on Twitter:
http://twitter.com/BobFBurns
<DIV> </DIV>
<DIV>
<DIV>In a message dated 05/10/2014 14:23:11 GMT Standard Time, ac1wye@gmail.com
writes:</DIV>
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<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255)">Hi,
folks. Now that I have my timer display problem figured out, I'm
trying to see how the clocks compare to WWV. In the Manual, there's no mention
of adjusting the clocks slower or faster. Anyone know if there's a way to do
that?<BR><BR clear=all></DIV>
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<DIV><SPAN style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">
<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255); DISPLAY: inline">73,
Sandy AC1Y</DIV><BR><BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)"><BR><BR>Alexander N. Gerli,
Sr.<BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">548 Allred Mill
Road<BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">Mount Airy, NC
27030-2202<BR><BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">Scotsmen walk about 900 miles each
year.<BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">A Scotsman drinks around 45 gallons of Whisky a
year.<BR></SPAN></FONT></SPAN></DIV><FONT size=4><FONT size=4><FONT
size=4><FONT size=4><FONT size=4><FONT size=4><FONT size=4><FONT size=4><FONT
size=4><FONT size=4><FONT size=4><FONT size=4><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><SPAN
style="COLOR: rgb(0,0,255)">Scotsmen get about 20 Miles Per
Gallon.</SPAN></SPAN><BR></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></DIV></DIV></DIV><BR><BR>_______________________________________________<BR>Heath
mailing
list<BR>Heath@puck.nether.net<BR>https://puck.nether.net/mailman/listinfo/heath<BR></FONT></BLOCKQUOTE></DIV></FONT></DIV></FONT></BODY></HTML>